How severe is CVE-2017-18770?

CVE-2017-18770 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-18770 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18770?

CVE-2017-18770 primarily affects Netgear R7800 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-18770?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-18770 published?

CVE-2017-18770 was published on 2020-04-22 and last updated on 2026-06-17.

CVE-2017-18770

CVE-2017-18770 is a medium-severity vulnerability in Netgear R7800 Firmware with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 5.2
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Netgear R7800 Firmware
Published: 2020-04-22
Last modified: 2026-06-17

Description

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects R7800 before 1.0.2.36, PLW1000v2 before 1.0.0.14, and PLW1010v2 before 1.0.0.14.

Frequently asked questions

What is CVE-2017-18770?: Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects R7800 before 1.0.2.36, PLW1000v2 before 1.0.0.14, and PLW1010v2 before 1.0.0.14.
How severe is CVE-2017-18770?: CVE-2017-18770 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-18770 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18770?: CVE-2017-18770 primarily affects Netgear R7800 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-18770?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18770 published?: CVE-2017-18770 was published on 2020-04-22 and last updated on 2026-06-17.

References

https://kb.netgear.com/000051473/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Powerlines-and-a-Router-PSV-2016-0121

Affected products (3)

cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:plw1000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:plw1010_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Netgear R7800 Firmware

CVE-2021-38516 — Critical (CVSS 10.0): Certain NETGEAR devices are affected by lack of access control at the function level. This affects D6220 before…
CVE-2021-29068 — Critical (CVSS 9.9): Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects R6700v3 before…
CVE-2020-35795 — Critical (CVSS 9.8): Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects AC2100 before…
CVE-2018-21153 — Critical (CVSS 9.8): Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D7800 before…
CVE-2018-21161 — Critical (CVSS 9.8): Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects D7800 before…
CVE-2019-20730 — Critical (CVSS 9.8): Certain NETGEAR devices are affected by SQL injection. This affects D3600 before 1.0.0.68, D6000 before 1.0.0.68, D6200…

All CVEs affecting Netgear R7800 Firmware →

Other CWE-120 (Classic Buffer Overflow) vulnerabilities

CVE-2025-48611 — Critical (CVSS 10.0): In DeviceId of DeviceId.java, there is a possible desync in persistence due to a missing bounds check. This could lead…
CVE-2026-24823 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in FASTSHIFT…
CVE-2026-24810 — Critical (CVSS 10.0): Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in rethinkdb (src/cjson modules).…
CVE-2026-24800 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in tildearrow…
CVE-2025-9962 — Critical (CVSS 10.0): A buffer overflow vulnerability in Novakon P series allows attackers to gain root permission without prior…
CVE-2010-10016 — Critical (CVSS 10.0): BS.Player version 2.57 (build 1051) contains a vulnerability in its playlist import functionality. When processing .m3u…

Browse all CWE-120 (Classic Buffer Overflow) vulnerabilities →